Illinois · county areal climate 1951–2025
Peoria County, IL
A 52.1°F / 37.5" normal · 2025 ran +1.2°F vs normal.
2026 so far · through Jul 9: This area is running
+2.2°F (50.6°F) vs the 1996–2025 to-date normal — the
7th warmest start of 76 years. Precipitation
113% of normal.
U.S. year-to-date → Normal (1996–2025)
52.1°F
annual mean · 37.5" precipitation
2025 vs Normal
+1.2°F
53.3°F · 26.9" (72% of normal)
Warmest Year
55.2°F
2024 · coldest 48.1°F (1979)
Wettest Year
54.4in
2009 · driest 23.4" (1988)
Hottest Day
102.9°F
Jul 8 · 2012
Coldest Day
-22.8°F
Jan 5 · 1999
Biggest Rain Day
3.81in
Sep 14 · 1961
Record
1951–2025
75 complete years · NOAA nClimGrid
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal
nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the
station records.